Fundamental limit on the performance of phase aberration correction and correlation based flow estimates in medical ultrasound


Journal Article

Cross correlation and similar operations are used for displacement (delay) estimation in medical ultrasound. We apply the Cramer-Rao Lower Bound to derive analytical expressions to predict the magnitude of errors in displacement estimation using radio frequency and detected data in both one and two dimensions. These expressions are verified by simulation and applied to realistic situations in phase aberration correction and flow estimation.

Duke Authors

Cited Authors

  • Walker, WF; Trahey, GE

Published Date

  • December 1, 1993

Published In

Volume / Issue

  • 2 /

Start / End Page

  • 1149 - 1153

International Standard Serial Number (ISSN)

  • 1051-0117

Citation Source

  • Scopus